公开(公告)号：US20150181664A1

公开(公告)日：2015-06-25

申请号：US14546323

申请日：2014-11-18

Applicant: CHROMA ATE INC.

Inventor： Che-Cheng HU ,  Chih-Chiao CHANG

IPC: H05B33/08

CPC classification number: H05B33/086

Abstract: A light-emitting module and a driving method thereof are disclosed. In this method, P light-emitting units are selected as a target group, wherein each of the P light-emitting units has N different power parameters corresponding to N sub-bands. P evaluated current values corresponding to the P light-emitting units are computed according to a target spectrum and the N×P power parameters corresponding to the P light-emitting unit in the target group. An emission-spectrum error is computed according to the target spectrum, the N×P power parameters, and the P evaluated current values. It is determined whether the emission-spectrum error conforms with the determining criteria. When the emission-spectrum error conforms with determining criteria, the P evaluated current values are set to be P driving current values corresponding to the P light-emitting units.

Abstract translation: 公开了一种发光模块及其驱动方法。 在该方法中，选择P个发光单元作为目标组，其中每个P个发光单元具有对应于N个子带的N个不同的功率参数。 根据目标光谱和对应于目标组中的P发光单元的N×P功率参数来计算对应于P个发光单元的P评估电流值。 根据目标光谱，N×P功率参数和P评估电流值计算发射光谱误差。 确定发射光谱误差是否符合确定标准。 当发射光谱误差符合确定标准时，P评估电流值被设置为对应于P个发光单元的P个驱动电流值。